CANN: fix acl_tensor_ptr usage in ASCEND_310P ROPE (llama/17347)

CANN: fix acl_tensor_ptr usage in ASCEND_310P ROPE (llama/17347)

* cann: fix acl_tensor_ptr usage in ASCEND_310P ROPE implementation

Fix compilation errors in the ASCEND_310P-specific ROPE operation code
by adding .get() calls when passing acl_tensor_ptr smart pointers to
functions expecting raw aclTensor* pointers.

This fixes the code that was missed in the previous refactoring commit
(8981848) which changed ggml_cann_create_tensor() return type from
aclTensor* to acl_tensor_ptr.

* cann: format code